As a recent development in environmental consciousness, the Central Pollution Control Board (CPCB) has issued an order for about 270 tyre pyrolysis plants in 19 Indian states to be shut down. The closedown directive stems from the fact that these units have been infringing environmental standards, leading to escalated pollution levels.
Tyre Pyrolysis: An Overview
Tyre pyrolysis is essentially a method utilized for deconstructing used tyres in an oxygen-deficient environment. Under this method, tyres are shredded and subjected to extreme heat ranging from 250°C to 500°C. This process results in the formation of liquid oil and gases.
In India, this technique does not only manage domestic waste tyres, which constitute 6% of the global tyre waste but also handles used tyres imported from countries such as Australia and the U.K. These tyres are shipped to India for recycling and disposal purposes.
The Problem with Pyrolysis Process
Although tyre pyrolysis was initially deemed a safer alternative to burning tyres, the process isn’t without its issues. The process leaves residues which include fine carbon matter, pyro-gas, and oil. Furthermore, the mismanagement of these by-products potentially poses significant health risks.
There’s also another crucial aspect to consider — the health of the workers involved in tyre pyrolysis. The procedure has been identified as both harmful and polluting, impacting the overall well-being of those employed in this industry.
Regulations on Tyre Disposal
To curb the pernicious emissions resulting from tyre disposal, the National Green Tribunal ruled in 2014 against burning used tyres in open spaces or using them as fuel in brick kilns. This regulation came into effect due to the toxic emissions produced by these activities.
Some Facts about Tyre Pyrolysis
| Fact | Description |
|---|---|
| Number of units ordered for closure | 270 |
| States affected | 19 |
| Temperature range used in pyrolysis | 250°C – 500°C |
| By-products | Fine carbon matter, pyro-gas, oil |
| Percentage of global waste tyre India handles | 6% |
Source of Information
This article has been compiled using information from The Hindu (TH).